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Specify MeterProvider configurable cardinality limits #2960

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merged 37 commits into from
May 8, 2023

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jmacd
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@jmacd jmacd commented Nov 18, 2022

Fixes #1891.

EDIT: Updated to specify cardinality limits at the View/Instrument level with a Reader-level default. Updated to use a hard limit

Changes

Adds optional support for a maximum cardinality limit.

The recommended default is 2000, based on this comment by #1891 (comment) @jack-berg.

The Prometheus-WG SIG discussed this on Nov 9, 2022 and reached this recommended solution to the problem outlined in #1891. The consequence of exceeding these limits is in line with the current Prometheus server behavior, which drops targets that misbehave. The discussed was summarized here: #1891 (comment)

@jmacd jmacd requested review from a team November 18, 2022 00:07
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@arminru arminru added area:sdk Related to the SDK area:configuration Related to configuring the SDK spec:metrics Related to the specification/metrics directory labels Nov 24, 2022
@jmacd jmacd changed the title Specify MetricReader configurable limits Specify MeterProvider configurable cardinality limits Nov 28, 2022
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jmacd commented Nov 28, 2022

This PR has been updated to specify the limit at the MeterProvider level. PTAL.

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jmacd and others added 2 commits November 30, 2022 12:34
Co-authored-by: Georg Pirklbauer <georg.pirklbauer@dynatrace.com>
Co-authored-by: Georg Pirklbauer <georg.pirklbauer@dynatrace.com>
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github-actions bot commented Dec 8, 2022

This PR was marked stale due to lack of activity. It will be closed in 7 days.

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trask commented Apr 21, 2023

/easycla

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@open-telemetry/specs-approvers Please take a look at the latest iteration. This PR has been discussed/standing for a long time now, and would be great to have it adjusted/merged soon.

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jmacd and others added 3 commits May 4, 2023 12:38
Co-authored-by: Alan West <3676547+alanwest@users.noreply.github.com>
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@jmacd Should we include this in the May release?

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Talked to @jmacd, we are ready to roll this in. Thanks a lot for the iteration (and patience)!

@carlosalberto carlosalberto merged commit 1997dd1 into open-telemetry:main May 8, 2023
carlosalberto pushed a commit to carlosalberto/opentelemetry-specification that referenced this pull request Oct 31, 2024
…#2960)

Fixes open-telemetry#1891.

**EDIT: Updated to specify cardinality limits at the View/Instrument
level with a Reader-level default. Updated to use a hard limit**

## Changes

Adds optional support for a maximum cardinality limit.

The recommended default is 2000, based on this comment by
open-telemetry#1891 (comment)
@jack-berg.

~The Prometheus-WG SIG discussed this on Nov 9, 2022 and reached this
recommended solution to the problem outlined in open-telemetry#1891. The consequence
of exceeding these limits is in line with the current Prometheus server
behavior, which drops targets that misbehave. The discussed was
summarized here:
open-telemetry#1891 (comment)
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Metrics SDK: define standard circuit breakers for uncollected, infinite cardinality recordings